<?php

/*
 +--------------------------------------------------------------------+
 | CiviCRM version 3.3                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2010                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM is distributed in the hope that it will be useful, but     |
 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
 | See the GNU Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
*/

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC (c) 2004-2010
 * $Id$
 *
 */

require_once 'CRM/Core/Form.php';
require_once 'CRM/Core/BAO/CustomField.php';

/**
 * This class is to build the form for deleting a field
 */
class CRM_Custom_Form_DeleteField extends CRM_Core_Form {

    /**
     * the group id
     *
     * @var int
     */
    protected $_id;

    /**
     * The title of the group being deleted
     *
     * @var string
     */
    protected $_title;

    /**
     * set up variables to build the form
     *
     * @param null
     * @return void
     * @acess protected
     */
    function preProcess( ) {
        $this->_id    = $this->get( 'id' );
        
       
        $defaults = array( );
        $params   = array( 'id' => $this->_id );
        CRM_Core_BAO_CustomField::retrieve( $params, $defaults );
        
        $this->_title = $defaults['label'];
        $this->assign( 'title' , $this->_title );
        
        CRM_Utils_System::setTitle( ts('Confirm Custom Field Delete') );
    }

    /**
     * Function to actually build the form
     *
     * @param null
     * 
     * @return void
     * @access public
     */
    public function buildQuickForm( ) {

        $this->addButtons( array(
                                 array ( 'type'      => 'next',
                                         'name'      => ts('Delete Custom Field'),
                                         'isDefault' => true   ),
                                 array ( 'type'       => 'cancel',
                                         'name'      => ts('Cancel') ),
                                 )
                           );
    }

    /**
     * Process the form when submitted
     *
     * @param null
     * 
     * @return void
     * @access public
     */
    public function postProcess( ) {
        $field = new CRM_Core_DAO_CustomField();
        $field->id = $this->_id;
        $field->find( true );
        
        CRM_Core_BAO_CustomField::deleteField( $field );

        // also delete any profiles associted with this custom field
        require_once "CRM/Core/BAO/UFField.php";
        CRM_Core_BAO_UFField::delUFField($this->_id);
        CRM_Core_Session::setStatus( ts('The custom field \'%1\' has been deleted.', array(1 => $field->label)) );        

        CRM_Utils_Weight::correctDuplicateWeights('CRM_Core_DAO_CustomField');  
    }
}

